Optimizing Etalon-Based Spectroscopy for Iron Fluorescence Lidar System using a He-Ne Laser: Investigating Performance and Wavelength Adaptation

This work explores the application of an etalon-based spectroscopy in iron fluorescence lidar systems, specifically focusing on the utilization of Rb spectroscopy with a helium-neon (He-Ne) laser. The aim is to enhance detection and characterization capabilities by achieving precise measurements and analysis of iron fluorescence signals. The poster details the experimental setup, which involves capturing interference fringes using a camera and analyzing them through image processing techniques. The processed images provide valuable information about the interference pattern, including its center, which is crucial for subsequent analysis. By calculating angles and wavelengths based on the interference pattern, insights into the interference phenomena and additional modes in the laser system are obtained. The results demonstrate the radial symmetry of the interference pattern and the variations in intensity as distance from the center increases. The findings highlight the complexities within the laser system and contribute to a deeper understanding of the interference phenomenon. The work concludes by discussing the potential advancements and implications of etalon-based spectroscopy for iron fluorescence lidar systems, emphasizing the need for optimization to enable real-time image analysis in practical applications.